The U2SCX has two different operation mode and switches automatically.[USB mass storage mode]
With Microsoft standard Mass Storage class driver. Supports only one SCSI device per one U2SCX.
[SCSI emulation mode]
With RATOC original driver. Supports up to seven SCSI devices in daisy per one U2SCX. You must use this mode for image scanners, film scanners or other SCSI devices except mass storage devices.
*SCSI emulation mode is only for Windows.

Ultra-slim and compact design allows you to use with another SCSI connector either side-by-side or stacked.

- DC +5V 300mA (Max).SCSI device must provide the power through SCSI Termination Power output pin. If SCSI termination power is not available, you need to connect an OPTIONAL AC adapter (sold separately).

AC Adapter for U2SCX Item # FR-AC05For CBU2, if USB devices need more than 300 mA from USB cable, this adapter is needed.
Both FR1SX and U2SCX work with term power from the SCSI device. If the SCSI device doesn't supply term power to SCSI bus, you need this optional AC adapter.>>Specification

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